diff --git a/config/initializers/bigdecimal-segfault-fix.rb b/config/initializers/bigdecimal-segfault-fix.rb new file mode 100644 index 00000000..8fb3bf9e --- /dev/null +++ b/config/initializers/bigdecimal-segfault-fix.rb @@ -0,0 +1,30 @@ +# Copyright (c) 2009 Michael Koziarski +# +# Permission to use, copy, modify, and/or distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +require 'bigdecimal' + +alias BigDecimalUnsafe BigDecimal + + +# This fixes CVE-2009-1904 however it removes legitimate functionality that your +# application may depend on. You are *strongly* advised to upgrade your ruby +# rather than relying on this fix for an extended period of time. + +def BigDecimal(initial, digits=0) + if initial.size > 255 || initial =~ /e/i + raise "Invalid big Decimal Value" + end + BigDecimalUnsafe(initial, digits) +end +